Apollo 17 Harrison Schmitt Return To The Moon signed book (Last of the Moonwalkers)

Harrison Schmitt was the 12th and last Moonwalker, and was the 'very last' astronaut to walk out from the Lunar module, onto the moon's surface.
(note: Gene Cernan left the last footprint on the moon, as he returned last to the Lunar Module)
As an Apollo 17 Astronaut and Geologist, he spent 3 days in December 1972 on the lunar surface sampling, documenting and interpreting the moons potential resources and geological features.